Electrical indicating system



Oct 21, 1941. R. M. HICKS ET AL 2,260,116

ELECTRICAL INDICATING SYSTEM Filed May 24, 1930 9 sheets sheet 1 Ra I? I120]? l0 6 Malawi 45 BY Zere/fR.Ze/-ay Wand,@w@y s- W ATTORNEYS Oct. 21, 1941. R. M. HICKS ETAL 2,260,116

I ELECTRICAL INDICATING SYSTEM Filed May 24, 1 50 9 Sheets-Sheet 2 HPD INVENTORS f5 laaynzofldfllllbls wandflaxoda vm-V ATTORNEYS Oct. 21, 1941. R. M. HICKS ET AL- 2,260,116

ELECTRICAL INDICATINLG SYSTEM Filed May 24, 1930 9 Sheets-Sheet s I NVENTORS Raynzoudflffz'ck BY IVeref/R.Lerqy ATTORNEYS Oct. 21, 1941. R HICKS ETAL 2,260,116

ELECTRICAL INDICATING SYSTEM Filed May 24, 1930' 9 Sheets-Sheet 4 INVENTORSI Rag/mad l z'cfis BY Zvem/fRZe vy 1w, 554mg; 1:. W

ATTORNEYS Oct.21, 1941. R M. HICKS ET AL 2,260,116

ELECTRICAL INDICATING SYSTEM Filed May 24, 1930 9 Sheets-Sheet 5- #ilmj ATTORNEYS Oct. 21, 1941. R. M. HICKS ETAL 2,260,116

ELECTRICAL INDICATING SYSTEM Filed May 24, 1930 9 Sheets-Sheet 6 541; j 72f I '1 I I I viz/(9%;

5mm l w W I 6% 11 1 Whf' I ATTORNEYS Oct; 21, 1941. v R. M. HICKS ETAL 2,260,116.

' ELECTRICAL INDICATING SYSTEM Filed May 24, 1930 9 Sheets-Sheet 7 INVENTO'R5' (UM, M5 r 7 p ATTORNEYS Oct. 21, 1941.

R. M. HICKS ETAL ELECTRICAL INDICATING SYSTEM Filed May 24, 1930 A I'l 9 Sheets-Sheet 8 INVENESRS k Ra mond .Hv'c s %Vereilj3 Leroy ATTORNEYS Oct. 21', 1941; RMHICKS A 2,260,116

ELECTRICAL INDIGATING SYSTEM Filed May 24, 1950 9 Sheets-Sheet 9 Wyn/$31,? M

v ATTORNEYS Patented Oct. 21, 1941 1;

PATENT oFFICE ELECTRICAL INDICATI NG SYSTEM Raymond M. HicksyLarchmont, and Everett R.

Leroy, New York, N,

register Corporation, New York, N.

ration of Delaware f I Application May 24,

, "fisolaimsy This invention relates to electrically controlled indicating systems for posting prices of stocks or other commodities.-

Among the objects of provision of improved means for controlling and operating a stock quotation board or the like comprising a large number ofgroups of indicator assemblies for indicating various price ranges ofstocks, such means preferably including at the receiving station a stock number or group selecting means, a no-reset control means, a range or indicator assembly selecting means, price digit controlling means, all preferablyadapted to-be successively operated to store up information which is later to be released in the proper sequence to control the selection and operation of any indicator or indicators within any price rangeor ranges inany group of indicators relating to any stock of which theprice or prices are to be quoted; to provide storage mechanisms that may be controlled over a small number of transmission channels connecting the receiving s'ta tion with a transmitting station; to provide storage mechanisms responsive to code pulses over the transmission channels; to provide means for releasing the selecting storage mechanisms after their control has been effected and the price has been stored to permit of setting up a new selec-Z tion control as previously selected indicators are actuated; to provide an improved'impulse counting chain mechanism; to provide improved transmitting mechanism for controlling the receiving mechanism to provide for synchronization at any time after a transmission has been effected and during the control and operation of the indicators; and to provide improved means for facilitating the rapid and accurate transmission of controlling impulses and the-rapid and accurate control and operation of any desired indicator tion with the drawings, in which: I Figs, 1 to 6 taken together showa wiring diagram of a receiving station.

stocks, a group of relays 'for controlling the resetting of indicators within any selected assemblies or ranges of a selected groupyand a group of relays for controlling the selection of the as--- sembly or assemblies or the range or ranges, in which a price change is to be effected;

this invention are the Y., assignors toTheTeley Y., a corpo- 1930, Serial No. 455,217

.Figs 2shows the hundreds,tens, units and fraction price digits storage relays;

Fig.3 shows a group of impulse counting re-I lays; 1.- .Fig. 4 shows relays for effecting selection of the range or ranges of any stock in which the price is to be changed and a plurality of interrupters for sending impulses to the selected range or ranges; r

Fig. ,5 shows multi-contact switches for efiecting selection of any group of indicators;

Fig, 6, together with a portion of Fig. 4, a plurality of groups of indicators;

Fig.7 shows a keyboard for a transmitting mechanism that may be employed with this receiving mechanism; I Figs. 8 and 9 show .a wiring diagram of the transmitter;

L Fig. '10 shows a wiring diagram of thestock dreds group, a tens group and a units group,.

designated respectively by HSN, TSN and USN.

In; addition to these groups there is provided,

-reset group, designated No reset, to deterat 30I or ranges are. to be turned to blank and to receive'a set-up or'to'be left'at' the blank position;

This figure also shows a range group .of relays,

designated Range, to determine in which assem-" bly or range "of the selected group of indicators theamount isto be setup, or to control the clearing in unison of all of the ranges excep yesterdays close. a r :1 Fig. ZshoWS-hundreds, tens, units and fracassemblies in the quotation board; r .149lti0n price digit ps of relays si n d Other objects of the invention will be obviou from the following description taken in connec- TPD, UPD' and FPDzior controlling the new setup on the selected indicators.

,As ,isapparent from an inspection of Figs. 1 and 2 the various groups of relays shown therein are substantiallyidentical in construction. The difference between these groups will be pointed out as the construction and operation ofthe various groups are described,

5Q lays A, C B and D responsive respectively through the intermediary of polarized relays P'-l, P-3, N--l "andN-t, to positive and negative impulses singly or in combination, simultaneously i loif successively; over the transmission channels 55 R l and- R 3. Each group of relays further shows numbe'n pricedigit and range groups of storage ne which indicator units of the selected range 'Each of these groups of relays comprises re includes a transfer relay E which picks up and switches the circuit connections to the following adjacent group, after termination of the inciting impulse of certain of these relays. The relays A, C, B and D are controlled by first and second impulses over the channels R,| and R3, as shown in the following table.

. Pulse code Character 01' Polarized Group impulses Channel relay relay R-l P-1 -3 R-l N-l B" R-3 N-3 D Relay combination Stock Price No. Reset Range 7 digit 0 1t retgisregister register -regisn s er groups groups ter pulse on 2nd pulse groups groups A"... Nosecond pulse 1 No reset Last 1 required. H.

2 No reset LO-Last 2 2 No res et HI-Last 3 H, T, U. 4 4 5 5 6 6 7 7 8 8 9 9 0 n..- 0 Blank.

Syn

Reset all. required.

Stock number selection By referring to the pulse code table, it will.

be seen that a positive impulse over the transmission channel R,-i will energize the polarized relay PI marked associated with this channel; This relay picks up and closes its make contact-22 applying ground to line l6 connected over. one of the normal make and break contacts of the transfer relay E associated with the hundreds stock number group HSN, and to one terminal of the coil ofrelay A the other terminal of which is connected to battery and ground. As the relay A is energized it closes a holding circuit from ground and battery over its coil and its make contact 23, over the coil of. the transfer relay E, and over the locking.

line L connected over the break contact 24 of the release relay RLS--l Fig. 2, to ground. The energization of the relay A also operates its hundreds stock number group of relays to pick up and to establish a holding circuit over the coil of relay E and the locking line L to ground, and to'connect the cut-out line CO over various contacts in this group of relays to the 1 digit line 30,. which is grounded over relay I-ISN-I, Fig. 5. This cut-out line CO is normally held open at the make contact 3| of the transfer relay Eassociated with the No reset group of relays at the bottom of Fig. 1.

Referring again to the pulse code, a positive impulse over the transmission channel R-3 will energize the polarized relay marked which through its make contact 32 and line i5 will 7 apply ground to the relay C. Relay C will close itsmake contact 33 and establish a holding circuit over the coil of relay E and the locking line L. Relay C will also close its make contact 34 and prepare a circuit from the cut-out line CO over the normal make and break contact 25 of relay A, operated make contact 34 of relay C, normal make and break contact 35 of relay B, normal make and break contact 36 of relay D to the 2 digit line 3|. This digit line, as shown in Fig. 5, extends over the coil of relay HSN-2 to'ground.

By sending various impulses, as shown in the pulse code,- the'various digit lines 3, 4, 5, 6, I, 8, 9, in, may be connected to the cut-out line CO to prepare energizing circuits respectively for relays HSN-3 to HSNI0, Fig. 5.

Assuming now that the first impulse is a positive impulse on the transmission channel R-l, the relay A will pick up and establish a holdingcircuit over the coil of relay E and line L to I ground, and prepare; acircuit to the hundreds stock number selecting relay I-ISN-I, Fig. 5, as stated above. After this impulse has terminated the ground over the make contact 22 of the polarized relay controlled by this impulse willbe broken permitting the transfer relay make and break contact 25- thereby preparing a circuit from the cut-out line CO, over its contact 25 toline 26, over the normal make and break contact 21 ofrelay D, the normal make missionchannel R-- l causesthe relay Ain the erate as a pair of counters.

E to be energized in series with the relay A.

As shown inthe drawings either the relay A or the relay 'C and the transfer relay E coop- Whenthe transter relay E is-energized it disconnects the lines l3, l4; l5, and 16 from the hundreds stock number group and connects them to the lines H, l8, l9 and 20 which continue to the lines l3, l4, l5 and I6 connected over the normal make and break contacts-of the transfer relay E associated withthe tens stock number group TSN, to the relays A, C, B andD of the tens stock number group. A subsequent impulse coming in over the lines R-l, R-3, therefore, controls the tens the relays A and C energized the cut-out line to the 3 digit lin'e3l, which extends to a make I contact in each of the multi-contact hundreds stock number selecting relays HSNI to HSN-Hl in Fig. 5; When the simultaneousimpulses over the transmission channels R--] and R 3 cease, the transfer relay E for this group of relays will pick up and switch the lines [3, l4, l and I6 of this group of relays to the lines I3, I4, [Sand 16 of theunits stock number group USN. so that subsequent impulses over the transmission channels R-l and 55-3 will control the operation of this group of relays. a Assuming now a positive impulse over the transmission channel R-l and a'neg'ative impulse over'thetransmission channel R-3,-the positive impulse on the channel R-l'will cause the relaysyPe-i-l and A topick up as before, and the;negative impulseonthe channel R--3 will cause the polarized relay N--3 marked to pick ,up andcomplete a circuit'from ground over its make contact 38,line l3, connecting line H, line I3 entering the .unitsstock numberrelay group',:over the coil of relay D,-to battery and ground; The relay. D picks up and closes a holding circuit from ground. and battery over its icoiland .its make contact 39 to the locking line L. With the relays A and 1D picked up, the cut-out line CO'is connected over the operated make contact 25' of'relay'A,the operated make and break contact?! of relay D, the normal make and break contact '40 of .relay'C, to the"4 digitline, designated'by M, .which continues on Fig. 5 to the relay USN'.4 .of the units stock number selecting relays.

Operation of the relay groupsHSN, TSN, and USN in sequence in accordance with the pulse code prepares circuits for one of the hundreds stock number selecting relays HSNI to HSN-lll, for one of the tens stock number digit selecting lines from the tens stock number group to the multi-contact switches of the hundreds stock number selecting relays arid for one of the units stock number selecting relays USN to USNH1. The tens stock number digit lines are adapted to be connected through the multi-contact relays HSNI 'to HSN--l0 with lines multiplied over the multi-contact relays USN| to USNl0,-to lines 43 which as shown in Figs. land 6 are the energizing leads for the multi-contact group j selecting switches GSR. All of these lines are connectedto the common cut-out line CO which is normally open at the make contact 3i of i the transfer relay E of the no reset group. This contact-3| is connected to battery and ground.

Whilein the description of the operation of the hund'reds, tens, and units stock number groups of'relays only a few of the circuits have beentraced the remaining circuits may be easily traced by referring tothe pulse code above. Certain of the remaining circuits will be traced in connection with a description of the range relays last designated on Figs. land 6, respectively,

byI YCL, Ogr Hz', Lo, La. As shown, yest'erday"s close may comprise four indicating wheels as represented by four'operating magnets 46 and the fop en, high,v low and last indicator assemblies may each comprise three indicating wheels; The lowest indicating wheel ineach "as-v semblyj is usedl'for'the purpose of indicating daysc1'oseassemb1y, will serve to indicate the hundreds digit price of the stock.

f The indicators are operatedby impulses over lines H, T, U and F, Fig. 4, which will operate the hundreds, tens, units and fractions indicators respectively when connected to any indicator ascators over-the make contacts of a relay La.-

In this-manner selection of any indicator assembly or pricerange within anygroup is effected.

'If" it is desired to selectthe low and last indicators simultaneously this maybe done by energizing. the relay LLwhich applies battery over its make contacts to the grounded circuits of the relays Lo and La. The high and last indicators may be -selected simultaneously by energizing the relay HL which applies battery to the groundedcircuits of relays Hz and La. All of the open, fhigh, low and last indicators of any group may be selected simultaneously by energizing the relay OHLL which applies battery to thegrounded circuits of all of the relays Op; Hi, Lo and La; By means of the relays described it is possible to select any one of the five assemblies in a selected group of indicators, or to simultaneously select the high and last, the

low and last, or to select all of the assemblies open, high, low and last. i No" reset group The new price may differ from the price already set up in the indicators in fractions, in

fractions and units, in fractions, units and tens, or in fractions, units, tens and hundreds. The

no reset groupof relays, shown in Fig. 1, is

provided for the'purpose' of controlling the restorationand actuation of the indicators within a selected assembly or range on which a price change is to be indicated.

1 Reset of all indicators After the stock number has been set up by the first three impulses-or sets of impulses coming in over the transmission channels R-l and R-3, in the manner described, and the lines l3, l4, l5, and 16 have been extended by the transfer relay E of the units stock number group USN to'the lines 13, 14,15, and I6 entering the no reset group,'the fourth impulse coming in over the transmission channels R| and R-3, will control the relays A, C, B and D in the No.

Reset group in the same manner in which impulses controlled corresponding relays in the stock number groups. Inthis group the relay B locks directly to the line L while relays A, C and D lock to this line over the coil of relay E.

If the price change involves a change in the fractions, units, tens and hundreds positions, the yesterdays close indicators in these positions will be controlled to be restored and to take on a new set-up. As shown in the pulse code, a negative impulse over the transmission channel fractions. The hundredsi indica'tor inf-yester- '75: applies ground to'line I3, which, as shown in Fig. 1, applies ground to the relay D which immediately closes aholding circuit over its make contact 39, over the coil of the transfer relay E associated with this group, to the locking line L. The operation of the relayE of the no reset group after termination of the impulse switches the lines I3, I4, I5, and {B from this group to the range group, and at the same time it applies battery at its make contact 3| to the cut-out line CO which, through the circuit prepared by the hundreds stock number group, energizes one of the relays HSNI to I-ISNI on Fig. 5, applies battery toone of the digit lines prepared in the tens stock number which lines are extended over the multi-contact' switches of the energized hundreds stock number selecting relay, and also applies battery to the circuit prepared by the units stock number group which, as

shown in Fig. 5, is theenergizing lead for oneof the units stock number selecting relays USNI to USNI 3, over each of which the tens stock number lines extended through the hundreds stock number selecting relays, are multiplied. This applies battery over the contactv 3i referred to through a digit line in the tens stock number group of relays, over the multi-contactselecting switches for the hundreds and units stock number, to one of the lines 43, Fig. 5, which on Figs. 4 and 6 are shown as extending to the coils of group selecting relays GSR and to ground. This causes energization of one of the group selecting relays GSR which connects all of the busses for the various ranges to-the energizing leads of the operating magnets 46 of all the indicators of the group of one board stock number. The relay D of the no reset group merely cooperates with the relay E to switch the lines I3, I 4, I5 and Hi to the range group and to apply battery to theline CO.

Reset of tens, units, and fractions indicators If it is desired to reset the tens, units and fraction indicators but not the hundreds a positive impulse will be sent over the transmission channel R--I which will cause energization of' the relay A in the no reset group. As the relay picks up it connects ground and battery over its opera-ted make and break contact 25, over the normal make and break contact 48 of relay C to line Nh which, as shown in Fig. 2, extends to the coil of transfer relay E of the hundreds price digit group HPD to the locking line L grounded over the normal break contact 44 of the release relay RLS2. This energizes the transfer relay E and switches the connections I 3 I4, I5 and I6 from the hundreds price digit group I-IPD to the tens price digit group TPD so that the first actuating impulses sent to the price digit groups of relays will control the tens price digit group TPD.

The line Nh referred to is shown at the lower right hand corner of Fig. 2 as branched to Fig. 4 and over the coil of relay HC, to ground. This causes the relay EC to pick up and through it make contact 50 to close a holding circuit for it from ground to battery over break contacts 5| of relay RLS-2, Fig. 2, line L", contact 50; coil of relay HC, and line 52 to ground, and through its break contact 53 to disconnect the hundreds actuating line H from the hundreds pulsing interrupter HP, which will be later referred to. Relay EC also prepares another circuit over its make contact 54, the release line 55, and over the coil of relay RLS-2 to battery and ground.

Reset of tens and fractions indicators If the price change involves a change in the units and fraction indicatorsbut not in the hundreds'and tens-indicators a positive impulse over the transmission channel R3 is transmitted to cause the relay C in the no reset group to pick up. Energization of this relay causes it to prepare a holding circuit as before and in addition through its make. contact 34 completes a circuit from ground to battery over the normal make and break contact 25 of relay A, contact 34 and line Nht which at the bottom of Fig. 2 extends over the coil of relay HT to ground. The relay HT picks up and through its make contacts applies ground and battery to the line Nh which will havethe same effect as before, and also to line Nt' which will energize the transfer relay E of the tens price digit group of relays TPD which switches the lines I3, I4, I5 and. IB from the tens price digit group TPD to the units price digit group UPD, and. as shown in Fig. 4 current in line Nt will energize the cut-out relay TC which completes its own holding circuit over its make contact 56 with line L'. and prepares a circuit over its make contact 51 to the release line 55 and disconnects the tens actuating circuit T from the tens interrupter TP by opening its break contact 58.

Reset ,of fractions indicators If the only price change occurs in the fraction indicators positive impulses will be sent over the transmission channels RI and R3 to cause energization of the relays A and 0 in the no reset group. These relays prepare circuits from ground and battery over the operated make and break contact 25 of relay A, operated make and break contact 48 of relay C to line Nhtu which on Fig. 2 is shown as extending over the coil of relay I-ITU to ground; This relay picks up and through its make contacts applies battery to the lines Nh and Nt, before described as controlling the switching of the lines I3, I4, I5, and I6 from the hundreds and tens price digit groups to the units price digit groups and as disconnecting the actuating lines H and T, Fig. 4, from the interrupters HP and TB. One of the contacts of relay HTU applies battery to line Nu which energizes the transfer relay E associated with the units price. digit group to switch the lines I3, I4, I5, I6 from the units price digit group UPD to the fraction price digit group FPD. This line is branched off to the units cut-out relay UC, Fig. i, which disconnects the actuating line U from the interrupter UP by opening its connection to the interrupter UP atits break contact 6| Energization of this relay also closes its holding circuit over its make contact 62 to line L, and prepares a circuit to the release line as at its make contact 63.

Energization of any of the relays A, C, and D in the no reset group, as stated before, energizes the transfer relay E connected with this group which switches the lines I 3, I4, I5 and I6 of this group to the lines I3, l4, I5 and I6 of the range group, and through its make contact 3| connects the common cut-out line CO for the HSN. TSN, USN and range group to battery and ground. The lines in the selector groups HSN, TSN and USN now effect selection and energization of the stock group selecting relay GSR which locks to the line L". The function of the relay B will be referred to later.

Range group p The next impulses coming in over the transmission channels R-I and R-3 will cause energization of relays A, C, B and D of the range group in combination as indicated in the pulse code. A positive impulse over the transmission channel R-I will cause energization of the relay A which connects the common cut-out line CO now connected with battery over the make contact 3| of relay E of the no reset group, with the one line which, in Fig.4, is shown as extending to the coil of the relay La. As this relay picks up it looks to the line L" and connects the actuating lines T, U and F, with the bus lines't, u and J, for the La indicators of the group of indicators selected. 7

A positive impulse over the transmission. chan nel R--3 causes energization 'of the relay C which connects the cut-out line CO to the two line which, as shown in Fig. 4, energizes the relayLL which over its make contacts applies ground and battery to the relays Lo and La, which simultaneously connect the actuating lines T, U and F,

. shown in the pulse code.

to the bus lines t, u and f, for the low and" last indicators and lock to the line L".

Positive impulses over the transmission channels R,I and R-3 cause energization of the relays A and C which connect the cut-out line CO to the three line which, as shown in Fig. 4, is the energizing lead for the relay HL. -As the relay HL picks up it applies ground battery over its make contacts to the coils of relays Hi and La which connect the actuating lines T, Uand F, to the bus lines t, u and f, for the high and last indicators and lock tothe line L. I

A positive impulse over the transmission channel R.I and a negative impulse over the transmission channel R-3 cause energization of the relays A and Dwhich connect the cut-outline CO to the four line which is the energizing lead for the relay Lo which connects the; actuating lines T, U and F, tothe bus-lines t, u and ,f, extending to the low indicators and locks tofive line, which is shown as the energizing lead: for the relay'Hi which connects the actuating 0 lines T, U and F,to the bus lines t, u and for the high indicators and locks to the line L...

If it is desired to reset and actuate the open indicators a negative impulse will first be sent over the transmission channel R-I to cause en-.

ergization of the B relay. This will have no effect on the transfer relay E as .the B relay closes its holding circuit'at its make contact directly with the release line L.. This impulse will be followed by a positive impulse onfthe transmission channel R,-I which will cause energization of the relay A which prepares'a circuit to energize relay E as the impulse ceases. When A and B are picked up the line CO will be connected .to the six line which, as shown in Fig. 4, is the energizing lead for relay Op. This rel'ay connects theactuating lines T, U and F, to the bus, lines Lu and for the open indicators and locks to the line' L".

All of the open, high, low and last busses t, u and may be connected to theactuatin 'lines T, U and F, by energization of the relay OHLL, Fig. 4, the coil of which may be connected to the cut-out line C0 .over the seven line by energiz'ation of relays D and C responsive,

mission channel R,3 and a subsequent positive impulse on the transmission channel R3 as The relay O'I-l'LL grounds the circuits of the relays Op, Hi, Lo and La which connect their respective busses to the actuating lines H, T, U and F and lock to the line L".

The YCL bus lines may be connected to the actuating lines H, T, U and F, by energization of the relay YCL, Fig. 4, which may be connected to the cut-out line CO, Fig. 1, over the eight line by energization of relay B responsive to a negative impulse on the transmission channel R-I, and subsequent energization of relays A and C responsive to positive impulses 0n the transmission channels R! and R--3, respectively. The relay YCL locks to the line L".

After selection of the price range has been effected, as indicated, the transfer relay E of the range group picks up and switches the, lines I3, I4, I5 and I6 from this group to the hundreds price digit group HPD, in Fig. 2, so that the next impulses over the transmission channelswill cause energizationof the relays in this group, unless the transfer relay E of this group under the con.- trol of the no reset group of relays'has switched lines I3, I4, l5, and I6 from the hundreds price digitgroup HPD to the tens price digit group- TPD,.in which event the impulses coming over the lines I3, I4, I5 and I6,.wi1l control the relays of thetens' price digit group and so on. The first impulses coming in over the lines I3, l4, I5 and I6 are directed to the hundreds price digit group, or the tens price digit group, or the unit price digit group, or the fraction price digit group, under the controlv of the set-up in'the"no reset group of relays... The transfer'relay E, in the range group, ,also throughits make contact I0 applies ground to line II which, on Fig. 2, is shown as the ground line for the start restoring relay SR.

, Restoration of indicators Energization of the relay SR closes a holding circuit over itsmake contact I3 and the break contact MI of relay RLS-J to ground. It also applies battery from the line L over the pair of break contacts 5| of the releaserelay RLS, 2,- over its own make contact I4 to line I5 which, on Fig. 3, extends over a break after make contact I6 of the stop counting relay SC to line I! which, on Fig. 4, extends across the auxiliary interrupter Aua: to line I8 which, on Fig. 3, extends over the coil of the start pulsing relay SP. toground. The relay SP picks up and closes its'holding circuit from the line 'I'I over its make contact I9. It also applies battery over its make contact to line 8! which, as shown in Fig. 4, is connected over the interrupters HP, TP, UP and RP, to the actuating lines H, T, U and F, before referred to, and alsofover the counter-interrupter GP to line 82 which, on Fig; 3, extends to the counting chain of relays shown in this figure, This chain includes ten relays, Y, X, W, I, .2; 3, 4,U, V and T. The interrupter Aux closes a circuit to the start pulsing relay SP be- .bytherimpulsesjover the line 82 on these relays.

The: letter 0 indicates that the relay is operated, while the letter 'R'indicates that the relay is released.

Operation of counting chain relays Pulse 1 on 1 off 2 011 201i 3 on 3 06. 4 on 4 ofl 5 on 5 ofi 6 on 6 off 7 on 7 ofi 8 on 8 off 9 on 9 off 10 on 10 off woowwwwooaawwooawwww wwwoowwwwwoawwwoowaw owwa'aoowwwaoowzbwwoow wwwwvwwwwwwwwwwwwooo awwooowawwoowwwoooaw wooowawooowaaoooawww oowwwooowwaoooawwwwa oooooooooooowwwwwt b w ooooeooooooaawwwawww o ooooowwwwwwwwawwwww Counting chain relays The first impulse over the line 82 goes over thebreak contact 83 of relay X, over the normal breakiand make contact 84 of relay W, over the break contact 85 of relay Y, over the coil of relay I to ground. Relay I picks up and at its make contact 85 prepares a circuit from the line 11 over the break contact 81' of relay'X, and over the coil of relay W which will be extended to ground over the coil of relay I when the first impulse on the line 82 ceases. As shown in the table, when the first impulse on line 82 ceases, relays W and I will be energized in series. The relays I and W act as a pair of counters.

Relay I at its'make contact 88 connects battery on line 11 to the one line which is the one line in the price digit groups which, when one is set up in any one 'or all of these groups, will be extended through one or all of these groups to the cut-out relays HC, TC, U0 and F0 on Fig. 4, before referred to, under the control of the cut-in relay CI, Fig. 4, which is energized during setting-up operations as will be described later. Before the first impulse is sent over the line 82 to the counting chain, the interrupters HP, 'TP, UP and F? will cause impulses to go out over the actuating lines H, T, U and F, that are connected to the interrupters and thence to the v operating magnets 46 of the selected indicators which are grounded when out of blank position at RG as shown in the applications of M. Haselton, Serial No. 276,883, filed May 11,1928, and Serial No. 423,599, filed January 2'7, 1930, now respectively Patent 2,067,187 dated January 12, 1937,iand.Patent 2,049,499, dated August 4, 1936, to move each of the indicators ahead one step in the process of turning them forwardly to blank position.

As the second impulse comes in over line 82 following the second impulses to the selected indicators, the relays W and I are still energized, and the impulse will go over-the break contact 83 of relay X, the operated make and break contact 84 of relay VT, and over the coil of relay 2 to ground. Relay 2 prepares a circuit over its make contact 89 from line II over the break contact 9901" relay Y, coil of relay X, and coil of relay 2 to ground. When the second impulse which energized relay 2 ceases, the relays X and 2 acting as'a pair of counters will be connected in series between the line TI and ground, and relay X will be energized in addition to relay 2. Energization of relay X .breaks the circuit over relays W and I at its break contact 31 with the result that the one.line will be disconnected from line '11. After the impulse has ceased the relays X and 2 are energized and the relay 2 through its .rnake contact 9I connects the line I1 .over the normal make and break contact 92 of relay V..and the normal make and break 'contact 93 of relay T to the two line 94 which controls'the cut-out relays HC, TC, UC and FC during setting up operations of the indicators in the same Wayin which they are controlled over the line 88 previously referred to and as will be described later;

As the third impulse comes in over the line 82, following the third impulses to the selected indicators, relays X and 2 being operated, the impulse will continue over the normal make and break contact 95 of relay Y, operated make contact 95 of relay X,-and over the coil of relay 3 to ground. Relay 3 picks up and closes a circuit at its make contact 91 to the line 11 over the normal break contact 98 of relay W, the coil of relay Y, operated make contact 91 of relay 3, and over the coil of relay 3 to ground, energizing the relays Y and 3 in series as the impulse ceases. As the relay Y picks up it opens its break contact 99 thus deenergizing relays X and 2. Deenergization of relay 2 disconnects the two line from line TI. Relay 3 also closes its make contact 93 and establishes a circuit from line 11 over the normal make and break contact 99 of relay V, operated make contact 98 of relay 3, normal make and break contact I99 of relay U to the three line. As the relay 2 released it opened the circuit from line 11 to the two line at its make contact 9|. The relays 3 and V operate as a pair of counters.

Following the fourth impulses to the selected indicators, the next impulse over line 82, with relays Y and 3 energized, goes over the operated make and break contact 95 of relay Y, the normal break contact IIlI of relay W'to the coil of relay 4and to ground. Relay 4 picks up and closes its make contact I92'which prepares a circuit from the line H over the normal break contact 81 of relay X, coil'of relay W, make contact I02 of relay 4, and coil of relay 4 to ground. The relays 4 and W now act as'a pair or counters and as the impulse ceases the relays W and 4 will be energized in series. As relay W picks up it opens its break contact 98 which opens the circuit over the relays Y and .3. The release of relay 3 opens its contact9I and disconnects the three line from line II. As relay 4 picks up it connects line 'I'I over its make contact I93, over the normal make and break contact I 04 of relay V, over the normal make and break contact I05 of relay T to the four line, thus connecting this line to line H.

Relays W and 4 are energized as the fifth impulse comes in over line 82 and after the fifth impulses have been sent to the selected indicators. The impulse proceeds over the normal break contact 83 of relay X, over the operated make and break contact 84 of relay -W,'to the coil of relay 2 .to ground. Relay 2 picks up and applies battery over its make contact I04, make contact I05 of relay 4, normal make and break contact I96 of relay U tothe coil of relay T. Relay T picks up and prepares a circuit from line 11 over coil of relay U, over its make contact I 9'! to coil of relay T to ground. Relay 2 also prepares a circuit from line 11 over the, normal break contact of relay Y, over the coil of relay X, over its make contact89,'and coil of relay 2 to ground. As the impulse ceases relays Wand 4 will release and relays X and 2,;ancl relaysU and T, will be operated in series. Relay 4.at contact I03 disconnects the four 'line from line 11 and relay T at its contact 93 connects line 5 over the normal make and break contact 92 of relay V, operated make contact 9| of relay 2 to the line". Relays T and U will remain locked up as long as battery is applied to line". 1

After the sixth impulses havebeen sent to the selected indicators, a sixth impulse comes in over line 82 with relays X, 2, T and U picked up andproceeds over the normal make and break contact 95 of relay Y, the operated make contact 96 of relay X to the coil of relay 3. Relay 3 picks up and at its make contact 91 connects the coil of relays 3 and Y in series to line 11. As the pulse ceases relays 3 and Y come up in series and Y opens the circuit of relaysX and 2 deenergizing the same. Deenergization of relay 2 disconnects line 11 from the five line at its break contact 9 I.

Energization or relay 3 connected the six line over the operated make and break contact I of relay U, operated make contact 98 of relay 3, normal make and break contact 99 of relay V to line H.

After the seventh impulses have been sent to the selected indicators, a seventh impulse comes in'over line 82 with the relays Y, 3, Tand U energized. The impulses online 82 proceeds over the operated make and break contact 95 of relay Y, normal break contact "ll of relay W, to coil of relay 4 to ground. Relay 4 prepares a circuit at I02 from line TI, normal break contact 81 of relay X, coil of relay W, coil of relay 4 to ground. As the impulse ceases relays W and 4 will'be energized in series. Relay W opens the circuit 'forrelays Y and 3 at its break Contact 98 and relays 3 and Y deenergize. Relay 4'connectsline 11' over its make contact I03, normal make and break contact I04 of relay V, operated makeand break contact I05 of relay T, to-the seven line. The

' relay 2 which prepares at 89 a circuit for relays X and 2. As the impulse ceases relays X and 2 come up. X at its contact 81 releases relays W and 4. Relay 2' first came up and'closed its contact I04 and applied battery ov'er'contact I04, .operated make contact I05 of relay 4, operated make contact tutor relay U and coil of-relayV to ground. As relay V picks up it closes a holding circuit over its 'makecontacEt-LI03 to line-I1. As relay 4 releases, V is held over contact IBIi'rom line I l. Relay 4 opens the circuit to thefiseven line at its contact I03 and relayV closes a circuit from line H over the operated 'make'contact 9| of relay 2, operated make and'break'contact 92 of relay V to the eight line. The relays X, 2, U, T and V are now energized. h

After the ninth impulseshave gone out over lines H, T, U and F, the ninth impulses coming in over line 82, goes over the normal break contact 95 of relay Y, and theoperated make contact 96 of relay X to the coil ofrelay'3 which prepares a circuit over its make contact QIirom line 11, over the coils of relays Y and '3; As the impulse ceases relay Y comes up and opens the circuit for relays X and 2, thegla'tter, disconnecting -.at its break contact 9-I, the. reign line from line have gone out over 11,; relay 3 having already connected thenine line over its make contact I09, operated make and break contact 99 of relay V to line I-I;-' As relay Y comes up it breaksat its break contact the circuit for relays X and-2. ninth impulse is oil relays Y, 3, T,'U and V are operated.

- Following the tenth impulses going out over lines H, T, U and F, the tenth impulse coming in over line 82 goesover the operated make and break contact of relay Y, over the normal break contact IOI of relay W to the coil of relay 4. Relay 4 prepares a circuit from line 'I'I over the coils of relays W and 4. As the impulse ceases relays W and 4 pick up, relay W opens the circuit.

of relays Y and 3, relay 3 at v98 disconnects line 9 fromline 'I'I. Relays W, 4, U, T and V, are

now" up. Relay 4 connects line 11 over its closed contact I03, over the operated make and break contact I04 of V, to line IIO, over normal make and break contact I I0 of thes't-art actuating relay SA to line II2, over the normal make and break contact II3. of the .wipe out relay W0, Fig. 4, over line II 4 to coil of stop. counting" relay-SC to ground. The re1ay SC picks up and. at its ma'ke'contact II4, applies ground to line at its break contact 24 to the locking lin'e'L, per-.

mitting stock number information to be setup.

Relay SC also at its break after make contact I6 disconnects linefII fromiine l5, and connects line I5 over its coil to ground toj'hold up this relay until relay ,RLS2 isejnergized. As line".

is disconnected from line [5, all of the counting chain relays release. Relay SC at its contact [I5 applies battery to line B, the purpose of which As the cut-in: relay CI, Fig. 4, is energized it closesits make contact H3,

Will be referred tolater.

of the relay SC to ground. The relay CI also' closes its contact .I l9 and applies groundto the actuation line Ag connected'over an operated multiecontact switch GSRto' one of the ground lines of the operating ma'ghetsof the selected group of indicators.

The control of the counting relays during,

- restoration of the indicators. 'controls'the transmission of ten impulses by the interruptersl-lP, TP,'UP and FF over one or more or all of'the actuating lines H, T, U and F to the selected indicator or indicators. The ground RG, 4, is applied as shown in the application referred to whenever the indicators are out of their blank position. These indicators bear a blank. and digits 1 to 9 and 0 sojth'atitvrequiresj ten impulses toyclear an indicator exhibiting the.';ln dicia one (1).

When the As the indicators arrive, respec,

tively, at blank, the ground RG is disconnected and of course the impulses over the respective actuating lines H, T, U and F cease, though the interrupters which are all on the same shaft continue to rotate.

The actuation ground Ag is applied by the cut Following the impulses controlling the range group which controls the starting restoration relay SR, and while the restoration is proceeding, the next impulse on the transmission channels RI and R--3, if we assume that the relay D in the no reset group is operated as in the case where the hundreds, tens, units and fraction digits of the price are to be changed, will operate the hundreds price digit group of relays I-IPD, Fig. 2. A positive impulse on the transmission channel R3 and a negative impulse on the transmission channel RI will, according to the pulse code given hereinbefore, cause-the relays C and B to pick up. This will prepare a circuit from the line Hco over the normal make and break contact 25 of relay A, the operated make contact 34 of relay C, the operated make and break contact 35 of relay B, and over the normal make and break contact I20 of relay B to the five line. line L over its make contact 64-. Relay C closes its make contact 33 and as the impulse ceases a circuit will be made from battery over the coil of relay C, over its contact 33, over the coil of relay E to the locking line L for the price digit groups of relays. The transfer relay E switches the lines I3, I I, I and IB from the hundreds price digit group I-llPD to the tens price digit group TPD. Transfer relay E also applies ground at its make contact IZI to line I22 which at the normal make contact I23 of relay RLS2 will, when this relay is energized, apply ground to the coil of release relay RLS2 to which battery isapplied.

If we assume now that number six is to be set up in the tens price digit group TPDa negative impulse on the transmission channel R-I will cause energization of the relay B and this relay will lock to line L over its make contact 64, and a subsequent positive impulse on the transmission channel R--I will cause energization of. the

relay A, which prepares a circuit over its make contact 23 and coil of relay E to the locking line L. This will connect the line Tco over the operated make and break contact 25 of relay A, the normal make and break contact 21 of relay D, the normal make and break contact 28 of relay C and the operated make and break contact 29 of relay B to the six line. The first impulse which caused the operation of the relay B did not affect the relay E which, however, was energized as the second impulse which energized the relay A ceased. The transfer relay E switches the lines I3, I4, I5, I6 from tens price digit group TPD to the lines I3, I4, I5, I6 of the units price digit group UPD. The transfer relay E also applies ground at its make contact I2I over line I22, open at the normal make contact I23 of relay RLS2,'

as before.

Relay B closes a holding circuit to .If we assume that the digit seven is to .be set up in the units price digit group a negative impulse will be sent over'the transmission channel R3 to cause energization of the relay 'D,,and a second positive impulse will be sent in over the transmission channel R3 to cause energization of the relay C. Relay D over..'its :make contact 39 locks to line L. Relay C prepares a circuit at its make contact 33 from ground and battery over the ,coil of relays C. and E as, before. This connects the lines Uco over the'normal make and break contact 25 of relay ,A, the operated make contact 34 of relay C, the normal "make and break contact 35 of relay B and the operated make and break contact-3S ofyrelay D to the seven line. ,As the impulse energizing relay C ceases the transfer relay E will be operated and will switch the lines I3, I4, I5 and I6 from the units price digit .groupUPD'tothe fractions price digit group FPD, and will also apply ground to the line I22 atits contact I2 I.

If we assume now that the numeral eight is to be set up in the fractions digit group FPD as for example, if the fractions were to be indicated in tens, or if it were desired to indicate the total number of shares of any particular stock sold, a

negative impulse over the transmission channel,

R-I will causerelay B to pick up and a second set of positive, impulses over the transmission channels RI and R3 will cause relays A and C to pick up. The relay B..will lock to the line L as before and relays Aand C will prepare circuits overrelay Eto line L. Relays A, B and C will connect the line Fco over the operated make and break contact 25 of relay A, the'normal make and break contact21of relay *D, the operated make and break contact '28 of relay C, and the operated make and break contact 36 of relay B to the eight line. -When the second impulse ceases, the relay E picks up in series with relays'A and C over locking line L and relay E applies ground to line I26 which is connected over one coil of-relay RLSI to battery and ground. The line IE6 is carried over a break contact I25 of relay RR which is grounded over line I I5 as the cut-in-relay CI, Fig. 4, is grounded by the stop counting relay SC, Fig. 3, after ten restoring impulses have'been sent-out over the actuating lines H, T, U ,and F, Fig. 4. As the relay RLS-I picks up it operates its break contact 24 and removes groundifrom the locking line L thereby causing the relays in Fig. 1 to release. As the relay RR picks up after restoration has been completed, it breaks the circuit of relay RLSI which releases and applies ground to the locking-line L to permit a new stock number to be set up in groups HSN, TSN and USN,

The start pulsing relaySP, Fig. 3, is actuated by the first impulse over the auxiliary interrupter Aua: which is orientated slightly ahead of the other interrupters. The first impulse is sent over this interrupter when the lines 11 and 15 have been connected over the operated make contact 74 cf the start restoring relay SR, Fig. 2, and make contact 5I 0f :the release relay RLS-Z to battery and ground. The SR relay is energized when ground is applied to line II, Fig. 1, by the make contact IQ of relay E of the range group of relays. That is, restoration is started after selection control has been set up in each of the groups of relays in Fig. 1.

The largest number of impulsesrequired to set up the price is eight as for example, according to the pulse code, eight impulses would be required to set up the price 678%. Restorationlalways-requires ten impulses so that the relay RR will never be picked up at the time the relay E of the fractions price digit group FPD is energized to ground the release relay RLS-l.

- By means of the controls described, restoration is started after the range has been selected which completes the selection, and all of the relays in Fig. 1 will be released after the fractions price digit has been set up in the group of. relays FPD. When restoration has been completed, that is, after ten impulses have been sent out over the actuating line H, T, U and F, the relay RR is energized simultaneously with the cutin relay CI, causing deenergization of relay RLS-I which applies ground over its normal make contact 24 to the locking line L so that impulses may now be sent over the transmission channels to select another stock by preparing circuits over groups HSN, TSN and FSN.

Actuation of indicators After the stop counting relay SC has been energized and the counting chain relays have been deenergized, and the start actuation relay SA and the cut-in relay CI have been'energized, the line T! will be connected successively to the varous digit lines connected in the price digit relays HPD, TPD, UPD and FPD to the cut-out lines H-co, Tc0, U co and Fco which, as shown in Fig. 4, are connected over the operated make contacts h, t, u and f to the cut-out relays HC, TC, U and FC.

-Impulses will be sent out over all of the actuating lines H, T, U and F unless these lines were disconnected from the interrupters by relays HC, TC, UC and FC under control of the no reset relays.

Immediately after the first impulse has gone out over the actuating lines H, T, U and F, the one digit line in the counting chain will be connected to the current carrying line H. This line, as well as all of the other digit lines, is multipled into all of the price digit groups of relays. If any of the one digit lines are connected with their cut-out lines Hc0, Tco, U'-co and Fco the current will continue to the respective cut-out relays HC, TC, UC and FC,

Fig. 4, which will pick up and disconnect the After the second impulse has gone out over I the actuating lines H, T, U and F, lin 11 will be connected to the two digit line which when connected across the price digit groups with any of the cut-out lines H-co, T--co, -Uco and Fco will energize the corresponding cut-out re-' lays HC, TC, UC and FC.

- If, as in the description, the five digit line is connected to the Hco line, the six" to the Tco line, the seven to the U-co line and the eight to the Fco line, the first five impulses will go out over lines H, C, U and F, and the relay HC will be energized after the fifth impulses have gone out so that no more impulses will go out over theline H. After the sixt impulses have gone out over lines T, U and F the relay TC will be energized and impulses over line T will discontinue. Impulses over line U discontinue after the seventh impulses have gone out over lines U and F, and impulses over line F will discontinue after the eighth impulse has gone out over line F.

. As the FC relay is picked up, and which in the assumed operation is the last to be picked up, it completes the ground connection to the'release line 55 over operated make contacts 54, 51, 63 and I30. This, as shown in Fig. 2, causes the relay RLS-2 to pick up which removes battery at it's contacts 5| from lines L and L" thereby releasing all of the relays in the price digit groups and all of the relays in Figs. 3, 4, 5 and 6. The

relay RLS2 is maintained energized over its contact I23, line I22, and contacts l2l of the relays E of the price digit group relays HPD, TPD

and UPD, thusinsuring that the line L is dis-' connected from ground until all of the relays in these groups have been released. The release of relays E causes the release of the RLS2 relay, thus normalizing all relays except those in the stock number groups which are locked to line L over the normal break contact of release relay RLS|.

As the E relay in the range group deenergiz'es under control of the relay RLS-l, it removes ground from the line H which is a ground line for the circuit through the coil of the start restoring relay SR, Fig. 2. This relay is held up over its'make contact 13 as long as line L is grounded over the break contact of the release relay RLS-2 so that it will apply battery to line 1.5 during actuation as well as restoration. Battery is removed from line 15 by opening the con tacts 5| of the release relay RLS2 when the circuit for this relay is grounded as the last necessary actuation impulse is sent out over lines H, T, U and F.

Synchronization It is desirable at intervals or in case any one of the various'receiving stations is out of step with the transmitter, to synchronize all of th receiving station s. This may be done at any stage in the setting up operation as shown in the pulse code by impulses causing energization of relays A, -B and Din any one of the stock number or price digit groups or the range group or an impulse to energize relay B of the no reset group. This completes a circuit from battery over make contacts l33,-I34 and I35 of these relays and normal break contact of relay C, and line 9 over the coils'of relays RLS-l and RLS2, energizing both relays and restoring all of the mechanism to normal.

Clearing open, high, lo'ur and last in unison 1 After groups HSN, TSN andUSN have been controlled, a negative impulse is sent over the transmission channel R3 which causes the relay D, of the no reset group, to pick up which merely switches the lines [3, I4, I5 and It to the range group. This is followed by impulses causing energization of relays A, C and Din the range group which connect the CO line to the coil of'rela'y OHLL which, as before, causes all of the relays Op, Hi, Lo and La to pick up.

Relay WO at its make contact I44 connects the nine line Ml to the-line L", which is the holding line for relays Op, Hi, Lo, La and GSR.

- Relay WO also at its operated make and break contact H3 connects line S to line H2 which is connected across the normal make and break contact III of relay SA to the line II 0 to'which batteryis applied as the tenth impulses are sent out over line H, T, U and F thus putting battery on line S which is grounded over a second coil of the release relays RLSI and RLS--2 causing these relays to remove battery from all of the holding lines L, L and L" and the apparatus to clear.

Blanking indicators If it is desired to rotate any of the indicators of a selected assembly or assemblies or range or ranges to the blank position as in the case in which the new price does not includ hundreds; or tens, or units, or fractions digits, or several of these, the stock number, no reset, and range controls are set up as conditions require and after this set-up has been efiected, the'price' digit groups are controlled as usual withthe exception that the group corresponding'to the indicator wheel that is to be 'cleared'and left in the blank position will be controlled by a first set of impulses over the transmission channels" to cause relays B and'D to pick up and a second set of impulses that will cause relays A and C to pick up.

Assume that the price is to be changed from 99% to 98. No control will be set up in groups HPD and T'PD. In the units'group UPD, the eight line will be connected to the locking'line L. In the fractions group FPD, the relays B and D, and A and C Will be energized. This prepares a circuit from the F-co line, over operated make and break contact 25 of relay A, operated make and break contact 2'! of relay D, operated make and break contact 40 of relay C, and operated make and break contact I34 of relay B tothe B line to which battery will be applied at the make contact I I5 of the stop countingrelay SC, Fig. 3, as the tenth restoration impulse is sent out. The current continues over the Fco line, Figs. 2 and 4, to the fractions .cut-out relay FC with the result that no actuating impulses will be sent out over the F line as the new setting-up operation of the selected indicator assembly to being eifected. As each of the price digit groups has a B line, it is obvious that any one or;

several or all of the indicators of the selected assembly or assemblies can be: moved to the blank position and left there. If all of the indicators are to be left in-the blank position, the release relay RLS2 will-be energized immediately upon grounding the line 55 over the contacts 53, 58, BI and I30 of relays HC, TC, U6 and FC which are energized simultaneously as the stop counting relay SC is energized as described above. The release relay RLS2 clears the no reset and the price digit groups and impulses controlling the no reset group may immediately come in over the transmission channels RI and R--3.

Transmitter A suitable form of transmitter is shown in Figs, 7, 8, 9, l0 and 11. Of these figures, Fig. '7 shows a keyboard, Fig. 8 shows two sets of groups of storage devices which may be alternately controlled from the keys andwhich may alternately control transmitting devices shown in Fig. 9: to control the impulses over the'transmission channels RI and R,3.

Each of the alternate sets of storage devices in Fig. 8 comprises groups of relays, HS, TS-,'US, I-IP, TP, UP, FP, Ra, and a no reset group NR. Each of these groups, except the no resetfgroup,

is substantially of the form shown in Fig. 10, whil'ethe no reset group is shown in detail in Fig. 11.

The keyboard,,Fig. 7, comprises ten digit keys which are used to store digits in the stock' number selection groups, price digits groups and in the range group. The keyboard also comprises a blank key BL, a synchronizing key Syn and a no reset key NR.

The digit keys I-I 0 and the blank key BL control storage mechanisms of the type illustrated in Fig. 10. The synchronizing key Syn controls a group of relays shown at the top of Fig. 8, which will be described later, and the no reset key NR controls a group of storage relays such as shown in Fig. 11.

Referring to Figs. 7 and 8 it will be noted that the four lines, a, b, c and d, extend from the keyboard to the groups of storage relays. As shown in Fig. 7, when the I key is depressed it applies ground to the line a, the 2 key applies ground to the line 0, the 3 key applies ground to lines a and c, the 4 key applies ground to lines a and d, the 5 key applies ground to lines I) and c, the 6 key applies ground to lines a and b, the 1 key applies ground to lines 0 and d, the 8 key applies ground to lines a, b, and c, the 9 key applies ground to lines a, c and d, and the I 0 key applies ground to lines D, c and d. The BL key applies ground to lines a, b, c and d.

When the parts are in normal position, as shown in Fig. 8, the lines a, b, c and d are connected across the normal make and break contacts of relay Q to lines aI, bI, cI and all which. enter the hundreds stock number group H$I, Fig. 8.

All of the stock number groups, price digit groups and range groups shown by rectangles,

in Fig. 8, are substantially of the same construc-- tion detailed out in Fig. 10. For the purpose oftracing the circuits prepared in each of these groups the group shown in Fig. 10 will be regarded as the hundreds group of the stock selection groups of relays.

When the digit key I in Fig. 7 is depressed it applies ground to the coil of relay At, Fig, 10, causing this relay to pick up. As the relay picks up it closes its make contact I55 and prepares a circuit over the coil of relay Et to the 2 line.

which, as shown in Fig. 8,, is normally grounded over the break contact I 5-I of the relay R-I. The relay At also closes itsmake contact I52 thereby connecting the GS line, Fig. 8, over the normal make and break contact I53 of relay SP-I to the line AI which, as shown in Fig. 9, is connected to contact I 0f the hs contacts of the rotary switch ARS. The GS lineis adapted to be connected to ground over the make contact I8I of relay G'OI and the interrupter pi, Fig. 9. As the digit key I is released it removes ground from the circuit of the relay At. The

relay At and the relay Et, act as a pair of counters, and as the relay Et picks up its shifts the linesaI, bl, cI and dI through the connection shown tobe extendedto the A2 line which is connectedthe line C'I which, in Fig. 9, is connected to the first contact of the hs contacts of the rotary switch CRS.

Depression of the digit key 3 causes the relays At and Ct to pick up and prepare circuits to the first of the its contacts of the switch relays ABS and CBS.

Depression of the digit key 4 causes the At and Dt relays to pick up. The At relay prepares a circuit to the first of the its contacts of the rotary switch ABS and the Dt relay prepares a circuit from the GSv line over its make contact I56 to line DI connected to the first of the its contacts of the rotary switch DRS.

Depression of the digit key 5 causes the relays Bt and Ct to pick up. The relay Bt prepares a circuit from the GSline over its make contact I5I, over the make and break contact I58 of relay .SP2 to line .BI which is connected to the first of the its contacts ofthe rotary switch BRS, Fig. 9. The relay Ct prepares a circuit for the GS line over its make contact I54, over the normal make and break contact I55 of relay SPI, to the line CI which is the first'of the hs contacts of the rotary switch CRS, Fig. 9.

Depression of the digit key 6 causes the relays At and Bt to pick up. The relay Bt prepares a circuit from the GS line over its make contact I51, the normal make and break contact I58 of relay SP-2, to the BI line which is connected to the first of the its contacts of the rotary switch BRS, Fig. 9. The relay Bt also prepares a circuit at its make contact I59 for the relay SPI which circuit is completed at the operated make and break contact I69 of relay At. The circuit prepared by the relay At from the GS line, over its make contact I52, is now extended over the operated make and break contact I53 of relay SPI to the line A2 which, in Fig. 9, is connected to'the second of the its contacts of the rotary switch ARS.

Depression of the digit key 1 causes the relays Ct and Dt to pick up. The relay Dt prepares a circuit from the GS line to the first of the vhs contacts of the rotary switch DES, Fig. 9, as before described. The relay Dt also prepares at its make contact I6I a circuit for the relay SPI whichis completed at the make contact I62 of relay Ct. The relay Ct prepares a circuit from the GS line over its make contact I54, over the operated make and break contact I55 of relay SPI, the line C2 which is connected to the second of the its contacts of the rotary switch CRS, Fig. 9.

Depression of the digit key 8 causes the relays At, Bt and Ct to pick up. The relay Bt prepares a circuit from the GS line to the BI line which is connected to the first of the its contacts of the rotary switch BRS. Energization of the relays At and Bt causes the relay SPI to pick up, as described before, so that the relay At will prepare a circuit from the GS line to theline A2 which is connected to the second of the its contacts of the rotary switch ARS, Fig. 9. The relay Ct prepares a circuit from the GS line to the C2 line which is connected to the second of the its contacts of the rotary switch CBS, Fig. 9.

Depression of the 9 key causes the relays At, Ct, and Dt to pick up. The relay Dt prepares a circuit from the GS line to the DI line which is connected to the first of'the hs contacts of the rotary switch DES, Fig. 9. The relays Dt and Ct to the second of the its contacts of the rotary switch ABS, Fig. 9. Energization of the relay SPI also causes the circuit preparedbythe relay Ct to be connected to the C2 line which is connected to the second of the hs contacts of the rotary switch CRS, Fig. 9. 7

Depression of the digit key I0 causes the relays Bt, Ct and Dt to pick up. The relay Dt prepares a circuit from the GS line to the DI line which is connected to the first of the its contacts of the rotary switch DRS, Fig. 9. The relays Ct and Dt through their make contacts I62 and I6I cause the relay SPI to pick up. These relays in combination with the relay Bt apply ground to the relay SP-2, the circuit extending over the normal make and break contact I69 of relay At, the

operated make contact I59 of relay Bt, the make tact, I55 of relay SPI to the C2 line which isconnected to the second of the its contacts of the rotary switch CRS.

Depression of the BL key causes the relays At, Bt, Ct and Dt to pick up. The relay Dt prepares a circuit from the GS line to the DI line which is connected to the first of the hs contacts of the rotary switch DRS, Fig. 9. The Bt relay prepares a circuit from the GS line to the BI line which is connected to the first of the its contacts of the rotary switch BRS, Fig. 9. As the relays Ct and Dt pick up they close the energizing circuit for-the relay SPI. The circuit prepared from the GS line by the relay At is connected to the A2 line which is connected to the second of the its contacts of the rotary switch ARS, Fig. 9. The circuit prepared by the relay Ct from the GS line is connected to the C2 line which is connected to the second of the hs contacts of the rotary switch CRS, Fig. 9. l

It we assume now that a set-up is to be made in the groups of relays on the right hand side in Fig. 8 the digit key corresponding to the hundreds stock number I-ISI is depressed and circuits'are prepared from the GS line to the rotary switches in Fig. 9, as described above, and the various relays At, Bt, Ct and Dt that were picked up are connected to the 2 line. After the key has been released the locking circuit for these relays is extended over the coil of the switching relay Et which picks up and disconnects the al, bl, cI and dI lines from the hundreds stock number group and connects them to the tens stock number group TS-l. The lines aI, bI, cI and dI, Fig. 8, are designated I, 2, 3 and 4 where they enter a group of relays and 5, 6, I and 8 where they leave a group. The letters A, B, C, D indicate that current on these lines sets up a control which causes the relays A, B, C and D in the receiver to pick up during transmission. The next depression of a digit key will cause circuits to be prepared in the tens stock number group TS--I. When the key is released the al, bl, cI and all lines will be shifted to'the units stock number group USI. The unitsstock number is now indexed on the keys which prepares circuits from the GS line across the switches in the unitsstock numbergroup USI to the rotary switches, in 

